Size Effect on the Micro-Extrusion Forming of Zr-based Amorphous Alloys

被引：1
|
作者：
Wu Xiao [1 ,2 ]
Xue Chun E [3 ]
机构：
[1] Wuhan Text Univ, Dept Mech & Elect Engn, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
[3] Changjiang Inst Technol, Wuhan 430074, Peoples R China
来源：
MACHINERY, MATERIALS SCIENCE AND ENGINEERING APPLICATIONS, PTS 1 AND 2 | 2011年 / 228-229卷
关键词：
Amorphous; Micro-extrusion; Size effect; Apparent viscosity; BULK METALLIC-GLASS; SUPERCOOLED LIQUID REGION; SUPERPLASTIC DEFORMATION; BEHAVIOR;
D O I：
10.4028/www.scientific.net/AMR.226-228.586
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Micro-extrusion of a Zr-based bulk metallic glass in its super-cooled liquid state is explored as a method to create objects of cup-shaped micro-parts. The effects of overall dimensions of the samples and the ratio of inner diameter to out diameter (i) on the forming are determined. The results reveal that the apparent viscosity of the forming liquid increases along with the rises of i or with the decrease of the overall dimensions, and the increasing speed is more quickly while i is greater than 0.833, which suggest that there exists significant size effect. More generally, the results suggest that large i, and a low overall dimensions are attributes indicating difficulty for forming.
引用
收藏
页码：586 / +
页数：2
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